Technically every flavor of Buddhism has all of the gods of man incorporated as the whole thing is a philosophy that was crafted by a man in India who doubted and spent decades following ALL of the religions extant at the time and came to a profound conclusion about the very nature of reality of the human condition that's so profound it's spread to all seven continents and remained relevant where it's set down roots for generation after generation and easily incorporates new belief systems.

But y'know, you can be ignorant too. It's the mahayana. We'll be waiting for you regardless of the path you choose.

Then technically it is not atheistic.

If you believe you will be waiting for me it is not a philosophy, but a religion.

Don't get me wrong I am a big fan of it as a philosophy. As a religion I rally like most flavors, I just find people who try and flaunt the title of atheism while following that religion as insufferable as 'atheists' who believe in the healing power of crystals